That's strange... Are you sure you're saving them with the right file extensions? So in the preset .material, if it says:
texture preset_7body.jpg
You're saving it as:
Preset_7body.jpg?
It should be working, I always used to do that, and when I did have a problem, it had something to do with the material file. You could try posting the .material file in quotes so we can look at it. :3
-Tackle Hugs- Thank you so much, that was my issue. The Body was saved as .png instead of .jpg I fixed it and now it works. :D :D :D :D :D
Pssh I knew that would be it. I always used to do that - I had to switch all .jpgs to .pngs for my materials. xD Good luck with your preset!